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Finding the Third Proportional to 394,535 and 862,875

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Solution

The third proportional to 394,535 and 862,875 is: 1,887,166.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,535 : 862,875 = 862,875 : x
  2. Step 2: Convert to fraction form
    394,535/862,875 = 862,875/x
  3. Step 3: Cross multiply
    394,535x = 862,875 × 862,875
  4. Step 4: Simplify right side
    394,535x = 744,553,265,625
  5. Step 5: Solve for x
    x = 744,553,265,625/394,535
  6. Step 6: Final answer
    x = 1,887,166.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.